Penurunan Kandungan COD dan BOD Limbah Cair Industri Tahu dengan Metode Ozonasi

Yulianto, Richi; Prihanto, Ratna Litza; Redjeki, Sri; Iriani, Iriani

doi:10.33005/chempro.v1i01.27

Cited by 6 publications

(6 citation statements)

References 3 publications

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“…COD level was 144 mg/L which was the lowest value in the experiment on the effect of ozonation on pH. This happens because the effectiveness of COD degradation has a tendency at pH 8-9, where a large number of hydroxyl radicals (OH -) will be formed [17]. Hydroxyl radicals are compounds that play an important role in the decomposition of organic compounds in wastewater.…”

Section: Effect Of Ph Ozonation On Dyes Content Cod and Bod5 Methylen...mentioning

confidence: 97%

Degradation of Methylene Blue Dye in Wastewater Using Ozonation Method with H₂O₂ Catalyst

Wulansarie,

Jannah,

Bismo

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Water pollution is still a serious problem in Indonesia. One of the pollutants that contribute to water pollution is dye. One type of dye that is often used in the textile industry is methylene blue. There are several methods for treating dye waste, one of which is the ozonation method. Ozonation is a chemical oxidation process to remove the color of organic dyes. The catalytic ozonation process can increase the ability of ozone in sewage treatment. The catalyst used is H2O2 which can decompose into OH radicals. OH radicals have a higher reduction potential than other oxidizing agents. Ozonation research with H2O2 catalyst aims to determine changes in the concentration of dyes, COD and BOD5. In testing the ozonation time (0.15,30,45,60) minutes, the pH conditions (5,7,9) and the total mass concentration of H2O2 (0.2,5,5,7,5,10) % showed that the longer the time ozonation, the higher the pH value. and the more H2O2 used, the less concentration of dye, COD and BOD5.

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Section: Effect Of Ph Ozonation On Dyes Content Cod and Bod5 Methylen...mentioning

confidence: 97%

Degradation of Methylene Blue Dye in Wastewater Using Ozonation Method with H₂O₂ Catalyst

Wulansarie,

Jannah,

Bismo

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…The quantity of deposits in reactor D causes the COD and BOD readings to be greater than in reactor C. In addition to being cloudier and darker, owing to the accumulation of sediment, reactor D has a stronger odor of rotten eggs and more mucus due to the increased microbial activity. This pungent stench is the result of bacteria decomposing organic matter and releasing sulfide acid gas (H 2 S) and methane (CH 4 ) (Yulianto et al 2020).…”

Section: Cod and Bod Valuesmentioning

confidence: 99%

Impact of disposable mask microplastics pollution on the aquatic environment and microalgae growth

Khoironi

Hadiyanto

Hartini

et al. 2023

Environ Sci Pollut Res

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The COVID-19 pandemic has mandated people to use medical masks to protect the public. However the improper management of disposable mask waste has led to the increase of marine pollution, in terms of water quality, and the decline in aquatic microorganisms. The aim of this research was to investigate the impact of disposable mask waste on fresh water and microalgae biomass quality. Disposable masks (untreated or treated with Enterococcus faecalis ) were placed in 10-L glass reactors containing fresh water or water containing algal Chlorella sp. and its growth supplements ( Chlorella medium) (four 10-L reactors in total) and kept in controlled conditions for 3 months. Water and biomass yield quality were evaluated using water quality analysis, spectroscopy, scanning electron microscopy (SEM), and proximate lipid and protein analysis. Disposable masks, incubated in either fresh water or Chlorella medium, affected several water quality parameters such as chemical oxygen demand (COD), biological oxygen demand (BOD), dissolved oxygen (DO), and pH. Microplastic identification revealed that some fibers were present in the water following a 100-day treatment process. Fourier transform–infrared spectroscopy (FTIR) analysis was used to determine the change in important, organic functional groups and highlighted the disappearance of a peak at 1530 cm −1 corresponding to the primary protein (C–N) and the appearance of new peaks at 1651 cm −1 and 1270 cm −1 corresponding to methyl alcohol (CH 2 OH) and ketone (C = O), respectively. This indicated the detrimental effect of disposable mask fragmentation on the biomass quality. The SEM investigation has shown a damage to the surface membrane of Chlorella sp. cells. Altogether, disposable masks decreased the water quality and damaged microalgae by inhibiting their growth. Therefore, the disposable mask contaminated by various microbes, after being used by a human, may be one of the most dangerous hazards to the environment.

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“…Chemical Oxygen Demand (COD) atau kebutuhan oksigen kimia adalah sejumlah oksigen yang dibutuhkan agar bahan buangan yang ada dalam air dapat teroksidasi melalui reaksi kimia (Sayow, Polii, Tilaar, & Augustine, 2020) Nilai COD merupakan parameter kimia yang sangat penting untuk diketahui dalam menentukan kualitas perairan atau limbah cair (Haerun, Mallongi, & Natsir, 2018). Limbah cair industri tahu mengandung bahanbahan organik yang tinggi terutama protein dan asam amino menghasilkan parameter COD, dan jika dibuang langsung ke saluran air akan mematikan ekosistem (Yulianto, Prihanto, Redjeki, & Iriani, 2020). Kadar COD yang melebihi standar baku mutu disebabkan karena limbah cair tahu pada umumnya sangat tinggi berupa protein 40% -60%, karbohidrat 25% -50% dan lemak (Lingga Sari Kartika, Ali As, 2017).…”

Section: Kadar Cod (Chemical Oxygen Demand)unclassified

“…Selain itu ditambahkan Adi Setia Rahman & Fajriati, (2021), kadar COD pada limbah tahu berasal dari air hasil rendaman dan pengelupasan kulit kedelai yang masih banyak mengandung pati. TSS dalam air dapat menimbulkan kekeruhan air, yang menyebabkan menurunnya laju fotosintesis fitoplankton dan tumbuhan air lainnya, sehingga produktivitas primer dari perairan mengalami penurunan (Yulianto et al, 2020).…”

Section: Kadar Cod (Chemical Oxygen Demand)unclassified

Analisis Kualitas Air Limbah Tahu di Kecamatan Kuranji Kota Padang

Ariyetti,

Anggia,

Wijayanti

2022

Dampak

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The rapid development of the tofu industry will have the potential to increase environmental pollution. Before the waste is discharged into the environment, it is necessary to identify and measure the contamination in order to get the proper waste treatment. This study aims to identify and measure contamination from tofu industrial wastewater that has the potential to pollute the environment, especially in Kuranji District, Padang City. The samples were taken at three locations and two sampling points, near the wastewater discharge and near community settlements. The parameters were BOD, COD, pH, TSS, N-NH3, and N-Total. Values of BOD, COD, pH, TSS, N-NH3 and N-Total at the first location and the first point were 544 mg/L; 278 mg/L; 4.87; 324 mg/L; 10.2 mg/L and 12.5 mg/L repectively, while at the second point the value were 210 mg/L; 432 mg/L; 5.56; 124 mg/L; 3.12 mg/L and 5.16 mg/L. At the second location and the first point: 413 mg/L; 876 mg/L; 4.21; 165 mg/L; 3.45 mg/L and 5.24 mg/L, while at the second point: 155 mg/L; 289 mg/L; 5.43; 89 mg/L; 2.15 mg/L and 3.11 mg/L. Next, the third location and the first point: 325 mg/L; 610 mg/L; 4.63; 190 mg/L; 3.87 mg/L and 4.28 mg/L, while at the second point: 121 mg/L; 287 mg/L; 5.87; 134 mg/L; 2.07 mg/L and 2.89 mg/L. The results obtained indicate the pH of tofu wastewater at all locations and points were not within the effluent quality standard limits according to the Minister of Environment Regulation No. 5 of 2014 and prove that indeed tofu wastewater in Kuranji District, Padang City has polluted the environment. Keywords: tofu wastewater, BOD, COD, TSS ABSTRAK Perkembangan industri tahu yang semakin pesat akan berpotensi meningkatnya pencemaran lingkungan. Sebelum limbah dibuang ke lingkungan, maka perlu dilakukan identifikasi dan mengukur cemaran sehingga mendapatkan pengolahan limbah yang tepat. Penelitian ini bertujuan untuk mengidentifikasi dan mengukur cemaran dari air limbah industri tahu yang berpotensi mencemari lingkungan, terutama di Kecamatan Kuranji, Kota Padang. Metoda penelitian yang dilakukan yaitu dengan mengambil sampel limbah cair industri tahu pada tiga lokasi dan dua titik pengambilan sampel untuk masing-masing lokasi, yaitu didekat tempat pembuangan air limbah dan didekat pemukiman masyarakat. Parameter pengujiannya meliputi : BOD, COD, pH, TSS, N-NH3, dan N-Total. Hasil pengujian pada lokasi pertama dan titik pertama, nilai parameter secara berurutan dari BOD, COD, pH, TSS, N-NH3 dan N-Total adalah 544 mg/L; 278 mg/L; 4,87; 324 mg/L; 10,2 mg/L dan 12,5 mg/L, sedangkan pada titik kedua nilainya 210 mg/L; 432 mg/L; 5,56; 124 mg/L; 3,12 mg/L dan 5,16 mg/L. Selanjutnya, lokasi kedua dan titik pertama : 413 mg/L; 876 mg/L; 4,21; 165 mg/L; 3,45 mg/L dan 5,24 mg/L, sedangkan pada titik kedua: 155 mg/L; 289 mg/L; 5,43; 89 mg/L; 2,15 mg/L dan 3,11 mg/L. Selanjutnya, lokasi ketiga dan titik pertama : 325 mg/L; 610 mg/L; 4,63; 190 mg/L; 3,87 mg/L dan 4,28 mg/L, sedangkan pada titik kedua:121 mg/L; 287 mg/L; 5,87; 134 mg/L; 2,07 mg/L dan 2,89 mg/L. Hasil yang didapatkan menunjukkan kondisi air limbah tahu dengan parameter pH pada semua lokasi dan titik melewati batas baku mutu yang diizinkan menurut Permen Lingkungan Hidup No.5 Tahun 2014 dan membuktikan bahwa memang air limbah tahu di Kecamatan Kuranji Kota Padang telah mencemari lingkungan. Kata kunci: air limbah tahu, BOD, COD, TSS

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Penurunan Kandungan COD dan BOD Limbah Cair Industri Tahu dengan Metode Ozonasi

Cited by 6 publications

References 3 publications

Degradation of Methylene Blue Dye in Wastewater Using Ozonation Method with H₂O₂ Catalyst

Degradation of Methylene Blue Dye in Wastewater Using Ozonation Method with H₂O₂ Catalyst

Impact of disposable mask microplastics pollution on the aquatic environment and microalgae growth

Analisis Kualitas Air Limbah Tahu di Kecamatan Kuranji Kota Padang

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Penurunan Kandungan COD dan BOD Limbah Cair Industri Tahu dengan Metode Ozonasi

Cited by 6 publications

References 3 publications

Degradation of Methylene Blue Dye in Wastewater Using Ozonation Method with H2O2 Catalyst

Degradation of Methylene Blue Dye in Wastewater Using Ozonation Method with H2O2 Catalyst

Impact of disposable mask microplastics pollution on the aquatic environment and microalgae growth

Analisis Kualitas Air Limbah Tahu di Kecamatan Kuranji Kota Padang

Contact Info

Product

Resources

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Degradation of Methylene Blue Dye in Wastewater Using Ozonation Method with H₂O₂ Catalyst

Degradation of Methylene Blue Dye in Wastewater Using Ozonation Method with H₂O₂ Catalyst